3LikesCustom Losi Micro
03-04-2018 | 04:13 PM
#31
Tech Apprentice
Joined: Apr 2017
Posts: 55
So I'm brainstorming the idea of going belt driven.. Why not go all the way right haha.
Main advantages of going belt driven are:
1) No more spur, pinion meshing
2) No possibility of stripping diff gears
But there are a couple challenges I face, I cant, for the life of me, find the ring gear/ pinion gear teeth count on the differential to calculate the ratio. And I would really REALLY not like to open the diff just to count the teeth.
Secondly, never owned a belt drive system, so making one is going to be reliant on a lot of inspiration from google, and getting the right belt gear ratios is going to be tricky, I dont want to design an inefficient setup.
Besides bearings, I have spare belts from my 3D printer, bought like 10m of fibre reinforced belting as an upgrade and havent had to change it out yet, so snagging 30cm of it wouldnt be an issue.
Of course all the diffs would be designed by myself so no parts needed there.
I would go ball diff front and rear, and already have an idea of how that would work.
So if anyone has a belt drive rc, could you tell me:
1) how many belt gears it has
2) teeth count on each gear
3) motor and cell count
4) apprx. top speed
Main advantages of going belt driven are:
1) No more spur, pinion meshing
2) No possibility of stripping diff gears
But there are a couple challenges I face, I cant, for the life of me, find the ring gear/ pinion gear teeth count on the differential to calculate the ratio. And I would really REALLY not like to open the diff just to count the teeth.
Secondly, never owned a belt drive system, so making one is going to be reliant on a lot of inspiration from google, and getting the right belt gear ratios is going to be tricky, I dont want to design an inefficient setup.
Besides bearings, I have spare belts from my 3D printer, bought like 10m of fibre reinforced belting as an upgrade and havent had to change it out yet, so snagging 30cm of it wouldnt be an issue.
Of course all the diffs would be designed by myself so no parts needed there.
I would go ball diff front and rear, and already have an idea of how that would work.
So if anyone has a belt drive rc, could you tell me:
1) how many belt gears it has
2) teeth count on each gear
3) motor and cell count
4) apprx. top speed
Cool car cool ideas cool project. You loose a little power going belt drive I might steer clear of that endeavour. Bravo on the suspension that's some neat stuff right there!
03-04-2018 | 09:04 PM
#32
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
I was under the impression that you maintain the same power, its just more linear response, but that is only what I read.
I think Im going to pursue it, even if it is a drop in power, the gratitude of getting it working well might be worth the drop in top speed. Plus, I run an 'imaginary' track in my basement ( 9 second laps) so top speed is something I've never experienced.
03-12-2018 | 10:34 AM
#33
Curious, ...does anyone know how the Carisma GT24b compares to the Losi micro SCT ?
Curious in terms of handling and quality?
There are a few Losi Micro SCT's on eBay ...for $100, both look good lightly used and come w/ the 2.4ghz systems, brushless and in original boxes.
Curious in terms of handling and quality?
There are a few Losi Micro SCT's on eBay ...for $100, both look good lightly used and come w/ the 2.4ghz systems, brushless and in original boxes.
03-12-2018 | 07:06 PM
#34
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
The only issue I ever had with it was the super thin tie rods which were made of plastic, and ended up breaking because of the constant stress of the suspension travel.
Parts support for the Losi seem to be limited to basically ebay and a couple customers on amazon (from what I've seen). Not sure who distributes Carisma, but assuming its about the same in terms of replacement part wait times.
Seems like Carisma ship with friction dampers, where as the Losi line has oil filled adjustable shocks, up to you if you want to invest in aluminum, never had an issue with mine.
For the price though, don't think you can go wrong with either one just by comparing what the Carisma looks like, maybe do a little reading on the durability of the Carisma and see what, if any, parts need stocking up on.
03-13-2018 | 09:01 AM
#35
Thanks,
yes, I already own a Carisma and really love it.
Just curious about the Losi and how it compared. Sounds pretty comparable actually, big thing is that its discontinued though ...so parts availability. At least Carisma is still going as a company and a new version is supposed to come out later this year.
yes, I already own a Carisma and really love it.
Just curious about the Losi and how it compared. Sounds pretty comparable actually, big thing is that its discontinued though ...so parts availability. At least Carisma is still going as a company and a new version is supposed to come out later this year.
03-13-2018 | 02:08 PM
#36
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
Thanks,
yes, I already own a Carisma and really love it.
Just curious about the Losi and how it compared. Sounds pretty comparable actually, big thing is that its discontinued though ...so parts availability. At least Carisma is still going as a company and a new version is supposed to come out later this year.
yes, I already own a Carisma and really love it.
Just curious about the Losi and how it compared. Sounds pretty comparable actually, big thing is that its discontinued though ...so parts availability. At least Carisma is still going as a company and a new version is supposed to come out later this year.
Ah ok then!
Yea it is unfortunate that the losi is discontinued, I heard rumors that they might be introducing a new micro/mini though. So we will see.
Wonder if there will be any parts compatibility.
03-13-2018 | 04:33 PM
#37
yes, Carisma is rumored to be coming out w/ another 1/24th scale (parts are supposed to be mostly compatible). I haven't heard of another 1/24th Losi?? -I think a mini (1/18th) may be in the works though?? ...again all rumors.
03-13-2018 | 05:51 PM
#38
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
. All things considered, I wouldnt mind having a true 1/18th scale diff and motor in my car.
Who knows, if the belt system works, I should be able to throw more power at it.
I just want my damn esc and motor to come in.
03-13-2018 | 07:48 PM
#40
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
03-14-2018 | 01:40 PM
#41
I just race my buddy's apex 1/18 by team associated
03-14-2018 | 06:25 PM
#42
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
I had a Team Associated 18r (which is the same car, the "apex" was just re-marketed). I could never get the steering to work right ...it would stick in one direction a lot due to the way the steering joints were all made. I sold it and got an xRay M18 pro (what a GREAT little car). I still use my M18pro all the time, it is fassssst and handles almost as well as a 1/10 touring car. Get one of those and you'll definitely outperform your buddies "apex".
I was out performing him before my motor went kapoots!
Do you remember if you had proportional throttle on your apex? On my buddies, you need to tap the throttle, like on a toy grade, where any its on or off. His steering is proportional though.
His steering is pretty good actually, doesnt track to one side or another, his car does make a clicking sound though once you go full throw on either side. I think its the cvd's up front.
Still nothing from hobbyking. Im getting slightly worried, my package arrived into Canada Feb/19 and yet here we are in March and still havent gotten it.
03-15-2018 | 10:17 AM
#43
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
Well I finally got my esc and motor in, good job HK, only took 1.5 months lol.
The esc is A LOT bigger than I expected. I forgot how big stuff is I guess after working with micro scale for so long.
Probably going to have to re design the chassis a bit so I can get everything as low and center as possible.
As of right now everything is on the upper chassis brace just for testing. It all works, and the esc programmed up no problem. Happy with everything as of right now.
Maybe ill get to it this weekend, schools super busy so Im not sure I can afford the time to do other things.
We will see.
The esc is A LOT bigger than I expected. I forgot how big stuff is I guess after working with micro scale for so long.
Probably going to have to re design the chassis a bit so I can get everything as low and center as possible.
As of right now everything is on the upper chassis brace just for testing. It all works, and the esc programmed up no problem. Happy with everything as of right now.
Maybe ill get to it this weekend, schools super busy so Im not sure I can afford the time to do other things.
We will see.
03-15-2018 | 08:52 PM
#44
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
03-27-2018 | 07:15 PM
#45
Thread Starter
Tech Apprentice
Joined: Dec 2017
Posts: 73
From: Toronto
Well Dr. Frankenstein has been at it again..
Hes what I've got to show you guys.
The diff gear is 30T which is very comparable to whats currently out there (Atomic Belted 1/27th uses 27T). Took a while to get the calculations right, but the meshing is perfect with my 2MM pitch belt.
Im using brass 3mm bb's in the ball diff, and the left and right plate will be sandwiched against the balls by the bearings. Im really hoping I can get enough pressure without having to have a screw go through the whole diff, like more traditional 1/10th scales.
Hes what I've got to show you guys.
The diff gear is 30T which is very comparable to whats currently out there (Atomic Belted 1/27th uses 27T). Took a while to get the calculations right, but the meshing is perfect with my 2MM pitch belt.
Im using brass 3mm bb's in the ball diff, and the left and right plate will be sandwiched against the balls by the bearings. Im really hoping I can get enough pressure without having to have a screw go through the whole diff, like more traditional 1/10th scales.